extra_avx512f_reduce.c
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#include <immintrin.h> /** * The following intrinsics don't have direct native support but compilers * tend to emulate them. * They're usually supported by gcc >= 7.1, clang >= 4 and icc >= 19 */ int main(void) { __m512 one_ps = _mm512_set1_ps(1.0f); __m512d one_pd = _mm512_set1_pd(1.0); __m512i one_i64 = _mm512_set1_epi64(1); // add float sum_ps = _mm512_reduce_add_ps(one_ps); double sum_pd = _mm512_reduce_add_pd(one_pd); int sum_int = (int)_mm512_reduce_add_epi64(one_i64); sum_int += (int)_mm512_reduce_add_epi32(one_i64); // mul sum_ps += _mm512_reduce_mul_ps(one_ps); sum_pd += _mm512_reduce_mul_pd(one_pd); sum_int += (int)_mm512_reduce_mul_epi64(one_i64); sum_int += (int)_mm512_reduce_mul_epi32(one_i64); // min sum_ps += _mm512_reduce_min_ps(one_ps); sum_pd += _mm512_reduce_min_pd(one_pd); sum_int += (int)_mm512_reduce_min_epi32(one_i64); sum_int += (int)_mm512_reduce_min_epu32(one_i64); sum_int += (int)_mm512_reduce_min_epi64(one_i64); // max sum_ps += _mm512_reduce_max_ps(one_ps); sum_pd += _mm512_reduce_max_pd(one_pd); sum_int += (int)_mm512_reduce_max_epi32(one_i64); sum_int += (int)_mm512_reduce_max_epu32(one_i64); sum_int += (int)_mm512_reduce_max_epi64(one_i64); // and sum_int += (int)_mm512_reduce_and_epi32(one_i64); sum_int += (int)_mm512_reduce_and_epi64(one_i64); // or sum_int += (int)_mm512_reduce_or_epi32(one_i64); sum_int += (int)_mm512_reduce_or_epi64(one_i64); return (int)sum_ps + (int)sum_pd + sum_int; }
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